US3858591A

US3858591A - Hair-piece for a hair wig having an all directional contractility and its processing method for the same

Info

Publication number: US3858591A
Application number: US418765A
Authority: US
Inventors: Yukio Wada
Original assignee: RYOWA AND CO Ltd
Current assignee: RYOWA AND CO Ltd
Priority date: 1973-11-23
Filing date: 1973-11-23
Publication date: 1975-01-07
Anticipated expiration: 1992-01-07

Abstract

A novel hair-portion for a hair-wig having multi directional contractility processed in three steps namely providing two stitching lines on the hair bundle, folding said bundle in two rows which is then provided with two lines of stitches, and further folding said bundle wherein lower threads in each processing of each step are spirally stitched by means of a looper of the sewing machine, said lower threads having contractility being spirally stitched during said threads being stretched in the lengthwise direction under the condition that the hair bundles are tensiled in the third step so that a multi directional contractility is provided to the hair-piece.

Description

i United States Patent [191 Wada' [111 5 3,858,591 [451 Jam 7, 1975 HAIR-PIECE FOR A HAIR WIG HAVING AN ALL DIRECTIONAL CONTRACTILITY AND ITS PROCESSING METHOD FOR THE SAME [75] Inventor: Yukio Wada, Tokyo, Japan [73] Assignee: Ryowa & Co., Ltd., Tokyo, Japan [22] Filed: Nov. 23, 1973 [21] Appl. No.: 418,765

3,678,942 7/1972 Abbott 132/5 Primary ExaminereG. E. McNeill Attorney, Agent, or Firm-George B. Oujevolk ABSTRACT A novel hair-portion for a hair-wig having multi directional contractility processed in three steps namely providing two stitching-lines on the hair bundle, folding said bundle in two rows which is then provided with two lines of stitches, and further folding said bundle wherein lower threads in each processing of each step are spirally stitched by means of a looper of the sewing machine, saidlower threads having contractility being spirally stitched during said threads being stretched in the lengthwise direction under the condition that the hair bundles are tensiled in the third step so that a multi directional contractility is provided to the hair-piece.

2 Claims, 9 Drawing Figures HAIR-PIECE FOR A HAIR WIG HAVING AN ALL DIRECTIONAL CONTRACTILITY AND ITS PROCESSING METHOD FOR THE SAME BACKGROUND OF THE INVENTION 1. Field of the Invention I This invention relates to a hair-piece for a hair-wig and its processing method, and more particularly to a hair-piece having sufficient contractility.

2. Description of the Prior Art Generally shown in FIG. 9, a hair-wig is formed of contractile material such as a net forming a cap to fit on wearers head, the cap being sewn together with a hair-piece 6 at the stitch seam-line 7 thereon. However the conventional material 5 loses its contractility with respect to the direction of the seam-line and only has contractility with respect to a direction perpendicular to the seam-line. Therefore such a hair-wig has the drawback of incomplete and uncomfortable fitness and does not provide a tight fit.

SUMMARY OF THE INVENTION Therefore, to overcome the above drawback of the conventional hair-wig, the inventor provides a hairpiece which permits an all-directional contractility whereby the wearer can enjoy an easy and comfortable and tight fitting hair-piece.

A major object of this invention is to provide a hairpiece which has all-directional contractility so that the wearer can enjoy an easy and comfortable and tight fitting hair-wig on his head.

Another object of this invention is to provide a hairpiece having all-directional contractility.

The hair-piece according to this invention is obtained by a sequence of steps, the first step providing a machine-sewing of two line stitches transversely on the center of a plurality of bundles of artificial hairs made of natural and/or artificial fibers, a second step consisting of folding said bundles in two rows at the central portion which are then provided with two line machine sewn stitches thereon, and a third step further folding said bundles which have been machine-sewn wherein lower threads in each processing of each step are spirally stitched by means of a looper of the sewing machine, said lower threads having contractility by being spirally stitched while said threads are streched in the lengthwise direction under the condition of that the artificial hair bundles are tensiled in the third step so that contractility is provided to the hair-piece. When such hair-pieces are sewn to a net cap or cloth cap 5 in order to form a hair-wig, the cap can retain its contractility perpendicularly to the seam lines of the hair-piece and also retain the contractility of the hairs in their lengthwise direction, namely two directional contractility of the cap is retained. Thus all directional contractility is obtained.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING FIG. 1 is a plan view of the hair bundle which is provided with two lines of stitching at the central portion of said bundle as the first process step;

FIG. 2 is a side view of the bundle shown in FIG. 1;

FIG. 3 is a side view showing a hair-bundle folded in two rows at its central portion;

FIG. 4 is a side view of the hair-bundle which is provided with two line stitching at its two folded portions according to the second step;

FIG. 5 is a side view showing a portion further folded in two rows at the end of the bundle shown in FIG. 4;

FIG. 6 is a side view of turned back folded portions which are machine sewn with lower threads according to the third step;

FIG. 7 is an enlarged cross section of the hair bundle which is spirally stitched while tensile is maintained on the hair bundle as well as the contractile lower threads being stretched according to the third step; and

FIG. 8 is an enlarged cross section showing the hairpiece under the condition that the tensile of the hair and the lower threads are released and the hair piece is contracted.

DESCRIPTION or, THE PREFERRED EMBODIMENT Now the preferred embodiment is hereinafter described referring to the accompanying drawing.

In FIGS. 1 and 2 showing a first step, artificial hairs l are made of natural and or artificial fibers which are cut in a certain length and aligned in bundles in a certain width. These bundles are provided with two rows of stitches 2 machine sewing at their center portions 2, at 2 transversely in a manner that the lower threads are spirally stitched by means of a looper of an industrial sewing machine, whereby the seam lines retain a certain contractility. Its characteristic is discussed later in detailed in a third step.

In FIGS. 3 and 4, a second step is shown.

The hair bundles sewn in the first step are folded into two rows at their central portion as shown in FIG. 3, further sewing

lines

3, 3 being provided at the both side portions of said

central seam lines

2, 2. In this case, the lower threads are also spirally stitched by means of a looper of the sewing machine.

In FIG. 5-8, the third step is shown.

The portion of the bundle in two rows already stitched is again turned back folded in two rows, which are provided with a machine sewing stitching 4 at the forward end portion as illustrated in FIG. 5 and 6. In this case, the lower threads 4b in FIG. 7 and 8 are contractile, said threads being stretched thereby providing a tension to the hairs which have been treated in the second step, then said are spirally stitched to upper threads 40 in a manner of a twisted loop. Upon twisting the threads, as shown in FIG. 7 in enlarged scale, the hair bundle is spirally double stitched in a manner that the upper threads 4a are disposed in wave form under stretched condition and are twisted with the lower threads 41: in two returns in loop form. After finishing the machine sewing, the tension of the hair bundles and,

the lower threads 4b is released thereby allowing the contraction of the same as illustrated in FIG. 8 in enlarged scale. 7

Thus as already discussed in the description of the prior art and the summary of" the invention, the contractile hair-piece according to this invention provides contractility in the lengthwise direction of the hairs and also in the stitching line directions so that the hair-wig using said hair-piece is easy and comfortable to wear and fits tight on to the head of the wearer, since an all directional contractility is provided as a result.

What is claimed is:

1. In a process of making a hair-portion for a hair-wig having multi-directional contractility, the sequence of steps are:

a. providing a machine sewing of two lines of stitches transversely along the center of a plurality of bundles of hairs to form an intermediate workpiece;

b. second, folding said intermediate workpiece in two rows at the central part which rows are then provided with two lines of machine sewn stitches thereon; and

c. third, further folding said intermediate workpiece so as to be turned back over said bundles which have been machine sewn, the lower threads in each of the processing being spirally stitched by means of a looper, said lower threads being spirally stitched while said threads are stretched in the lengthwise direction to provide contractility thereto and the intermediate workpiece being tensioned in the third step so that all directional contractility is provided to the finished article.

likewise held by

Claims

1. In a process of making a hair-portion for a hair-wig having multi-directional contractility, the sequence of steps are: a. providing a machine sewing of two lines of stitches transversely along the center of a plurality of bundles of hairs to form an intermediate workpiece; b. second, folding said intermediate workpiece in two rows at the central part which rows are then provided with two lines of machine sewn stitches thereon; and c. third, further folding said intermediate workpiece so as to bE turned back over said bundles which have been machine sewn, the lower threads in each of the processing being spirally stitched by means of a looper, said lower threads being spirally stitched while said threads are stretched in the lengthwise direction to provide contractility thereto and the intermediate workpiece being tensioned in the third step so that all directional contractility is provided to the finished article.

2. A hair-portion for a hair piece comprising bundles of hair sewn at the center portion by tension stretched spirally wound threads said bundles being bent at said center portion so that back hair in the bundle assumes a U-shaped configuration, additional stitches joining the arms of said U-shape towards the center portion, and an additional bending in said U-shape creating a double U-shaped configuration likewise held by stitches, all the stitches being of threads which are tensioned, and loop spiraled.